Valid JavaScript variable names in ES5

This content originally appeared on Mathias Bynens and was authored by Mathias

Did you know var π = Math.PI; is syntactically valid JavaScript? I thought this was pretty cool, so I decided to look into which Unicode glyphs are allowed in JavaScript variable names, or identifiers as the ECMAScript specification calls them.

This content originally appeared on Mathias Bynens and was authored by Mathias

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Mathias | Sciencx (2012-02-17T15:19:15+00:00) Valid JavaScript variable names in ES5. Retrieved from https://www.scien.cx/2012/02/17/valid-javascript-variable-names-in-es5/

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